28x36x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack Reflectors & Grow Lights 5% Nitrate Nitrogen

5% Nitrate Nitrogen

standard markers

3 Borosilicate glass

Leveling Feet

Airis J is powered by a high-grade 420mAh battery made to go longer in-between charges

28x36x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack Reflectors & Grow Lights 5% Nitrate NitrogenNordic Pure Custom MERV 8 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition